Dissolve gelatin in 1 cup of the juice and let it rest.
Warm up the remaining 1 cup of the juice in a pan.
In the meantime divide the fruit in small containers.
Pour the hot juice into the gelatin mixture and stir until well incorporated.
Pour the mixture into the small containers to cover the fruit.
Refrigerate until the mixture gels, about 2 hours.
Store in a fridge.